Objective-C

POP3 Login Secure

Demonstrates how to set the POP3 password using a secure string.

This example requires Chilkat v9.5.0.71 or greater.

Objective-C

#import <CkoMailMan.h>
#import <CkoJsonObject.h>
#import <CkoCrypt2.h>
#import <CkoSecureString.h>

BOOL success = NO;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

CkoMailMan *mailman = [[CkoMailMan alloc] init];

//  Imagine we've previously saved our encrypted login and password within a JSON config file
//  that contains this:

//  {
//    "pop3_login": "D7lnlWY291LKMeChlvQq7N/Tg7ieuSB15a+9Ekyd0R4=",
//    "pop3_password": "5neIq9Jmn0E3p71N6Yc8TA=="
//  }

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json LoadFile: @"qa_data/passwords/pop3.json"];

CkoCrypt2 *crypt = [[CkoCrypt2 alloc] init];

//  These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
crypt.CryptAlgorithm = @"aes";
crypt.CipherMode = @"cbc";
crypt.KeyLength = [NSNumber numberWithInt:128];
[crypt SetEncodedKey: @"000102030405060708090A0B0C0D0E0F" encoding: @"hex"];
[crypt SetEncodedIV: @"000102030405060708090A0B0C0D0E0F" encoding: @"hex"];
crypt.EncodingMode = @"base64";

CkoSecureString *ssLogin = [[CkoSecureString alloc] init];
CkoSecureString *ssPassword = [[CkoSecureString alloc] init];

//  Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
//  a randomly generated session key.)
[crypt DecryptSecureENC: [json StringOf: @"pop3_login"] secureStr: ssLogin];
[crypt DecryptSecureENC: [json StringOf: @"pop3_password"] secureStr: ssPassword];

//  Set the POP3 domain, login, and password
mailman.MailHost = @"pop.gmail.com";
mailman.PopSsl = YES;
mailman.MailPort = [NSNumber numberWithInt:995];

mailman.PopUsername = [ssLogin Access];
//  Set the PopPassword property via the SetPassword method using the secure string.
[mailman SetPassword: @"pop3" password: ssPassword];

//  Connect and authenticate..
success = [mailman Pop3Connect];
if (success != YES) {
    NSLog(@"%@",mailman.LastErrorText);
    return;
}

success = [mailman Pop3Authenticate];
if (success != YES) {
    NSLog(@"%@",mailman.LastErrorText);
    return;
}

NSLog(@"%@",@"POP3 login successful.");

int numMessages = [[mailman GetMailboxCount] intValue];
if (numMessages < 0) {
    NSLog(@"%@",mailman.LastErrorText);
    return;
}

NSLog(@"%@%d",@"Num messages in Inbox = ",numMessages);

[mailman Pop3EndSession];